Application - Sorting Resistors; Limits - Keithley 2750 User Manual

9-16 Limits and Digital I/O
Application — sorting resistors
For this application, the idea is to sort a batch of 100Ω resistors into three bins. Bin 1 is for
resistors that are within 1% of the nominal value. Bin 2 is for resistors that exceed 1% tol-
erance, but are within 5%. Bin 3 is for resistors that exceed 5% tolerance.
The digital outputs of the Model 2750 can be used to further automate the test system by
controlling a compatible component handler to perform the binning operations.

Limits

Limit testing is used to test resistor tolerances.
offset compensated ohms to test 100Ω resistors.
Figure 9-6
Setup to test 100Ω resistors
Model 2750
A. Front panel inputs
B. Model 7700
Sense HI
Input HI
Input LO
Sense LO
H
Model 7700
Switching
CH 11-20
L
SENSE
Model 2750 Multimeter/Switch System User's Manual
Figure 9-6
100Ω
H
CH 1-10
Module
L
INPUT
100Ω
shows a basic setup using 4-wire